I'm trying to compile code with GCC 5.1.0 which makes use of the good ole:

#define private public

hack (for some reason). I know, I know, but it's not my code and I'd like it to compile out of the box...

Now the issue is this: In GCC 5.1.0's version of the sstream header one finds the following:

  template<typename _CharT, typename _Traits, typename _Alloc>
    class basic_stringbuf : public basic_streambuf<_CharT, _Traits>
    {
      struct __xfer_bufptrs;
    public:
      // Types:
      typedef _CharT                                    char_type;
      typedef _Traits                                   traits_type;

[...]

    private:

[...]

      struct __xfer_bufptrs
      {

[...]


The problem is that the member __xfer_bufptrs is implicitly private when it's declared but then later it's expliclity marked private.

Then, due to the #define private public, the second one turns public but the first one does not and there's a conflict leading to this error:

/usr/include/c++/5.1.0/sstream:335:7: error: ‘struct std::basic_stringbuf<_CharT, _Traits, _Alloc>::__xfer_bufptrs’ redeclared with different access
       struct __xfer_bufptrs
       ^


Any chance to mark the first instance private explicitly?